Birtley Cavity Wall Lintel 100mm CB90
Birtley Cavity Wall Lintel 100mm CB90 - 750mm is backordered and will ship as soon as it is back in stock.
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The Birtley Cavity Wall Lintel 100mm CB90 provides a reliable solution for any cavity wall’s support needs. It is crafted to accommodate cavity ranging from 90 mm to 105 mm in depth with the outer leaf measuring 100mm and the inner leaf measuring 100mm. The 100mm cavity lintel is constructed to meet standard duty specifications. Use of the innovative, post-fabrication, hot-dip galvanisation process ensures that this cavity wall lintel gets 50% more zinc protection than similarly configured lintels. The Supergalv coating extends the life expectancy of this standard duty lintel, making it relevant for the toughest construction needs.
Features:
- Superior Zinc Protection: The post-fabrication hot-dip galvanisation provides exceptional zinc protection of 50% compared to traditional galvanised lintels.
- Life Expectancy: Due to Supergalv's durable coating, the overall lifespan is extended compared to standard steel lintels.
- Thermal Efficiency: The standard 100mm cavity lintel sets the benchmark by offering up to 55% enhancement on SAP default value thermal bridging, creating energy-efficient construction projects.
- Increased Cavity Support: Custom-tailored for cavity ranging from 90mm to 105mm in width, the design features precise measurements for both outer and inner leaf to provide better support.
- Available in span lengths from 750mm to 4800mm.
- Made from structural grade steel to EN10025

Description
Description
The Birtley Cavity Wall Lintel 100mm CB90 provides a reliable solution for any cavity wall’s support needs. It is crafted to accommodate cavity ranging from 90 mm to 105 mm in depth with the outer leaf measuring 100mm and the inner leaf measuring 100mm. The 100mm cavity lintel is constructed to meet standard duty specifications. Use of the innovative, post-fabrication, hot-dip galvanisation process ensures that this cavity wall lintel gets 50% more zinc protection than similarly configured lintels. The Supergalv coating extends the life expectancy of this standard duty lintel, making it relevant for the toughest construction needs.
Features:
- Superior Zinc Protection: The post-fabrication hot-dip galvanisation provides exceptional zinc protection of 50% compared to traditional galvanised lintels.
- Life Expectancy: Due to Supergalv's durable coating, the overall lifespan is extended compared to standard steel lintels.
- Thermal Efficiency: The standard 100mm cavity lintel sets the benchmark by offering up to 55% enhancement on SAP default value thermal bridging, creating energy-efficient construction projects.
- Increased Cavity Support: Custom-tailored for cavity ranging from 90mm to 105mm in width, the design features precise measurements for both outer and inner leaf to provide better support.
- Available in span lengths from 750mm to 4800mm.
- Made from structural grade steel to EN10025
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Built to Last: Galvanised Steel Construction

Lightweight and Easy to Install
Exceptional Load-Bearing Capacity

Versatile and Reliable
Why Choose Birtley Lintels?
Our customers tell it better than we do!
Excellent Delivery Service
Order arrived early in morning, delivery staff were excellent and able to place order as close as possible to where I required it. excellent communication through out delivery and after delivery.
Great Experience
Great experience Really pleased with the way my order was dealt with and delivery arrived as advised.
Good product and service
Good product, reasonable price, great service and good customer follow-up. Would recommend and use again.
Great Company
Great company, great product. Delivery was very speedy and items was delivered professionally by a very helpful driver. Would highly recommend.
Great quality wood and fast delivery
Great quality wood and fast delivery The company reached out to make sure that everything was good and the delivery went fine
Excellent service from a great company
Ordered 2T of midnight blue slate chipping (2 pallets of 50 bags each) Very nice product at a great price. Contacted quickly after order to arrange a suitable delivery date. Delivery was as arranged. Customer service is excellent including follow up call to ensure everything went well. All in all I would highly recommend Armstrong Cheshire.
Great Customer Relations
Due to a mistake in communication ( mostly my mistake) the first delivery of bulk aggregate went to an address I used to live at. After asking to have a replacement delivery to the correct address Armstrong Cheshire re-scheduled the delivery within 3 days and with fantastic customer relations. I cannot recommend this company enough.
Ultra Fast Delivery
Ultra fast delivery, technically superlative company, their products are light years ahead of all others. Unbelievable prices. I have been in construction for nearly 70 years now and am still working every day. This company is why I keep getting up in a morning. Thank you dear sirs/ Madam for making life easier
Steel Lintel
Easy to pick product online, said 10 days delivery but got the product in 4 days, excellent service and prices